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I – Inboard Mount
O – Outboard Mount
X – Balanced
(tp) – Patented TruPilot Feature
(a) – Unequally spaced exciter ring mounting
(b) – Equally spaced exciter ring mounting
(c) – Peripheral mount pilot
(d) – Furnished with set screw holes
(e) – Notched
(f) – For ball seat or hub piloted applications
(o) – OEM captive part number
Active Part Numbers
In Order by Part Number
Active Part Numbers
In Order by Size
Obsolete Part Numbers
In Order by Part Number
Gunite
No.
Drum
Weight
Drum
Mount
Drum
Type
Wheel
Type
Brake Size
Overall
Depth
Width
of Brake
Surface
Pilot
Dia.
Bolt
Circle
Dia.
Bolt Holes
Special Information
No.
Size
3280A
(o)
112
O BBA Disc
16.50x7.00 10.38 7.44
8.53 11.25
10
0.81
3280AX
(o)
112
O BBA Disc
16.50x7.00 10.38 7.44
8.53 11.25
10
0.81
3280X
(o)
112
O BBA Disc
16.50x7.00 10.38 7.44
8.53 11.25
10
0.81
3281 (o)
57
I
AAC Spoke
16.25x3.00 4.88 3.50 9.50 11.25
6
0.53
3281X
(o)
57
I
AAC Spoke
16.25x3.00 4.88 3.50 9.50 11.25
6
0.53
3283 (o)
69
I
AAA Disc
15.00x4.00
5.12
4.40 9.00 11.25
10
0.81
3283X
(o)
69
I
AAA Disc
15.00x4.00
5.12
4.40 9.00 11.25
10
0.81
3285
60
O BDE
Disc
15.00x3.00 6.90 3.60 6.43 8.75
10
0.71
3285A 60
O BDE
Disc
15.00x3.00 6.90 3.60 6.43 8.75
6
0.78
3285AX 60
O BDE
Disc
15.00x3.00 6.90 3.60 6.43 8.75
6
0.78
3285X 60
O BDE
Disc
15.00x3.00 6.90 3.60 6.43 8.75
10
0.71
3288
80
I
CAA Spoke
15.00x6.00 7.00 6.46 13.25 12.00
5
0.65
3288X 80
I
CAA Spoke
15.00x6.00 7.00 6.46 13.25 12.00
5
0.65
3289
88
I
AAA Spoke
16.50x5.00 6.40 5.34 10.00 12.75
6
0.78
Serviced by 3289X.
3289
88
I
AAA Disc
16.50x5.00 6.40 5.34 10.00 12.75
7
0.78
Serviced by 3289X.
3289
88
I
AAA Spoke
16.50x5.00 6.40 5.34 10.00 12.75
5
0.78
Serviced by 3289X.
3289B 88
I
AAA Spoke
16.50x5.00 6.40 5.34 10.00 12.75
5/6
0.78
3289BX 88
I
AAA Spoke
16.50x5.00 6.40 5.34 10.00 12.75
5/6
0.78
3290
93
O AEA Disc
15.00x4.00 9.00 5.40 9.00 11.25
10
1.25
3290X 93
O AEA Disc
15.00x4.00 9.00 5.40 9.00 11.25
10
1.25
3291
88
I
AAA Spoke
15.00x6.00 7.48 6.50 11.25 12.75
6
0.65 Equally spaced exciter
ring mounting.
3291A 88
I
AAA Spoke
15.00x6.00 7.48 6.50 11.25 12.75
6
0.65
3291AX 88
I
AAA Spoke
15.00x6.00 7.48 6.50 11.25 12.75
6
0.65
3291X 88
I
AAA Spoke
15.00x6.00 7.48 6.50 11.25 12.75
6
0.65 Equally spaced exciter
ring mounting.
3292
84
I
AAH Spoke
16.50x5.00 6.68 5.36 10.00 12.75
6
0.78
3292X 84
I
AAH Spoke
16.50x5.00 6.68 5.36 10.00 12.75
6
0.78
3293
115
O BDA Disc
16.50x7.00 9.98 7.36 8.53 11.25
10
0.78
3293A 115
O BDA Disc
16.50x7.00 9.98 7.36 8.53 11.25
10
0.84
3293AX 115
O BDA Disc
16.50x7.00 9.98 7.36 8.53 11.25
10
0.84
3293X 115
O BDA Disc
16.50x7.00 9.98 7.36 8.53 11.25
10
0.78
3294
69
I
AAH Disc
15.00x4.00 5.88 4.96 10.00 12.75
7
0.78
3294
69
I
AAH Spoke
15.00x4.00 5.88 4.96 10.00 12.75
5
0.78
3294
69
I
AAH Spoke
15.00x4.00 5.88 4.96 10.00 12.75
6
0.78
3294X 69
I
AAH Spoke
15.00x4.00 5.88 4.96 10.00 12.75
6
0.78
3294X 69
I
AAH Spoke
15.00x4.00 5.88 4.96 10.00 12.75
5
0.78
3294X 69
I
AAH Disc
15.00x4.00 5.88 4.96 10.00 12.75
7
0.78
3295
107
I
AAA Spoke
16.50x7.00 8.46 7.41
11.25 12.75
5/6
0.78 Unequally spaced exciter
ring mounting.
3295X 107
I
AAA Spoke
16.50x7.00 8.46 7.41
11.25 12.75
5/6
0.78
Unequally spaced exciter
ring mounting.
Serviced by 3295AX.
3298
61
I
AAA Spoke
15.00x4.00 5.00 4.34
9.50 11.25
5
0.78
3298X 61
I
AAA Spoke
15.00x4.00 5.00 4.34
9.50 11.25
5
0.78
3300 (o)
87
I
AAF Spoke
15.00x6.00 7.47
6.50 11.25 12.75
6
0.65
3300X
(o)
87
I
AAF Spoke
15.00x6.00 7.47
6.50 11.25 12.75
6
0.65
3329
62
I
AEG Disc
14.00x2.50 7.59 2.96 7.12
8.75
6
0.81
3329X 62
I
AEG Disc
14.00x2.50 7.59 2.96 7.12
8.75
6
0.81
3333
74
O BBA Disc
15.00x4.00 7.38 4.34
9.00 11.25
10
1.25
3333X 74
O BBA Disc
15.00x4.00 7.38 4.34
9.00 11.25
10
1.25